is() function
This API is provided as a preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
返回是某个类型的判断结果
Signature:
typescript
declare function is(value: any, type: string): boolean;declare function is(value: any, type: string): boolean;Parameters
| Parameter | Type | Description |
|---|---|---|
| value | any | 要判断的数据 |
| type | string | 判断他是这个类型 |
Returns:
boolean
{boolean} 布尔值
Example
JavaScript
let a = 1; is(a,'number')// true
let b = 2; is(a,'Number') // true
let c ="2"; is(a,'string') // true let a = 1; is(a,'number')// true
let b = 2; is(a,'Number') // true
let c ="2"; is(a,'string') // true